<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div>
        <img src="../assets/heima.png" alt />
        <span>电商后台管理系统</span>
      </div>
      <el-button @click="exit" type="info" class="exit">退出</el-button>
    </el-header>
    <!-- 主体区域 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="iscollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="toggle">|||</div>
        <el-menu
          background-color="#333744"
          text-color="#fff"
          active-text-color="#3d8cde"
          unique-opened
          :collapse="iscollapse"
          :collapse-transition="false"
          router
          :default-active="isactivepath"
        >
          <!-- 一级菜单 -->
          <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
            <!-- 一级菜单模板区域 -->
            <template slot="title">
              <i :class="iconObj[item.id]"></i>
              <span>{{item.authName}}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item
              :index="'/'+subitem.path"
              v-for="subitem in item.children"
              :key="subitem.id"
              @click="activepath('/'+subitem.path)"
            >
              <template slot="title">
                <i class="el-icon-menu"></i>
                <span>{{subitem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧内容主体 -->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data() {
    return {
      menulist: [],
      iconObj: {
        "125": "iconfont icon-users",
        "103": "iconfont icon-tijikongjian",
        "101": "iconfont icon-shangpin",
        "102": "iconfont icon-danju",
        "145": "iconfont icon-baobiao"
      },
      iscollapse: true,
      isactivepath: ""
    };
  },
  created() {
    this.getmenuList();
    this.isactivepath = location.hash.slice(1)
  },
  methods: {
    exit() {
      window.sessionStorage.clear();
      this.$router.push("/login");
    },
    async getmenuList() {
      const { data: res } = await this.$http.get("menus");
      if (res.meta.status !== 200) return this.$message.error(res.meta.message);
      this.menulist = res.data;
      // console.log(this.menulist);
    },
    toggle() {
      this.iscollapse = !this.iscollapse;
    },
    activepath(activespath) {
      window.sessionStorage.setItem("activespath", activespath);
      this.isactivepath=activespath
    }
  },
  watch:{
    // 监听路由
    $route(to,from){
      this.isactivepath=to.path
    }
  }
};
</script>

<style lang='less' scoped>
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  > div {
    display: flex;
    align-items: center;
    color: #fff;
    font-size: 20px;
    span {
      margin-left: 20px;
    }
  }
}

.el-aside {
  background-color: #333744;
}

.el-main {
  background-color: #eaedf1;
}
// .exit{
//   float: right
// }
.iconfont {
  margin-right: 10px;
}
.el-menu {
  border-right: 0 none;
}
.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>